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module ActiveRecord::ConnectionAdapters::Quoting
Public Instance Methods
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 67
def fetch_type_metadata(sql_type)
cast_type = lookup_cast_type(sql_type)
SqlTypeMetadata.new(
sql_type: sql_type,
type: cast_type.type,
limit: cast_type.limit,
precision: cast_type.precision,
scale: cast_type.scale,
)
end
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 9
def quote(value, column = nil)
# records are quoted as their primary key
return value.quoted_id if value.respond_to?(:quoted_id)
if column
ActiveSupport::Deprecation.warn(" Passing a column to `quote` has been deprecated. It is only used
for type casting, which should be handled elsewhere. See
https://github.com/rails/arel/commit/6160bfbda1d1781c3b08a33ec4955f170e95be11
for more information.
".squish)
value = type_cast_from_column(column, value)
end
_quote(value)
end
Quotes the column value to help prevent SQL injection attacks.
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 85
def quote_column_name(column_name)
column_name.to_s
end
Quotes the column name. Defaults to no quoting.
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 80
def quote_string(s)
s.gsub('\'.freeze, '\&\&'.freeze).gsub("'".freeze, "''".freeze) # ' (for ruby-mode)
end
Quotes a string, escaping any ' (single quote) and \ (backslash) characters.
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 90
def quote_table_name(table_name)
quote_column_name(table_name)
end
Quotes the table name. Defaults to column name quoting.
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 102
def quote_table_name_for_assignment(table, attr)
quote_table_name("#{table}.#{attr}")
end
Override to return the quoted table name for assignment. Defaults to table quoting.
This works for mysql2 where table.column can be used to resolve ambiguity.
We override this in the sqlite3 and postgresql adapters to use only the column name (as per syntax requirements).
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 133
def quoted_date(value)
if value.acts_like?(:time)
zone_conversion_method = ActiveRecord::Base.default_timezone == :utc ? :getutc : :getlocal
if value.respond_to?(zone_conversion_method)
value = value.send(zone_conversion_method)
end
end
result = value.to_s(:db)
if value.respond_to?(:usec) && value.usec > 0
"#{result}.#{sprintf("%06d", value.usec)}"
else
result
end
end
Quote date/time values for use in SQL input. Includes microseconds if the value is a Time responding to usec.
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 123
def quoted_false
"'f'".freeze
end
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 115
def quoted_true
"'t'".freeze
end
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 29
def type_cast(value, column = nil)
if value.respond_to?(:quoted_id) && value.respond_to?(:id)
return value.id
end
if column
value = type_cast_from_column(column, value)
end
_type_cast(value)
rescue TypeError
to_type = column ? " to #{column.type}" : ""
raise TypeError, "can't cast #{value.class}#{to_type}"
end
Cast a value
to a type that the database understands. For example, SQLite does not understand dates, so this method will convert a Date to a String.
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 127
def unquoted_false
'f'.freeze
end
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 119
def unquoted_true
't'.freeze
end
© 2004–2018 David Heinemeier Hansson
Licensed under the MIT License.